<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel='stylesheet' href='/stylesheets/common.css' />
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>后台管理</title>
</head>
<frameset cols="240px,*" border="0">
    <frame src="/left" name="left">
    <frame src="/right" name="right">
</frameset>

<body>
    
</body>
</html>